develops from start stage end stage ventral entopeduncular nucleus of ventral telencephalon The GAD67-positive (dorsal) entopeduncular nucleus (EN= former ENd) appears to be anatomically separate from the GAD67-negative bed nucleus of the stria medullaris (BNSM), which was formerly called the ventral part of the entopeduncular nucleus (ENv). ZDB-PUB-090814-14. entopeduncular nucleus, ventral part Peripheral nucleus of the ventral telencephalon that is a band of tightly packed cells starting at the level of the anterior commissure and extends into the telencephalo-diencephalic boundary region. From Neuroanatomy of the Zebrafish Brain. zebrafish_anatomy ventral entopeduncular nucleus V endopeduncular nucleus, ventral part nucleus entopeduncularis, pars ventralis ENv ZFA:0000299 TAO:0000299 peripheral nucleus of ventral telencephalon presumptive ventral entopeduncular nucleus unknown adult